US2734228A - Crimping apparatus - Google Patents

Crimping apparatus Download PDF

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Publication number
US2734228A
US2734228A US2734228DA US2734228A US 2734228 A US2734228 A US 2734228A US 2734228D A US2734228D A US 2734228DA US 2734228 A US2734228 A US 2734228A
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Prior art keywords
tow
yarn
crimping
chamber
rolls
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes

Definitions

  • This invention relates to an apparatus for crimping continuous filament tow or yarn and particularly tow or yarn made from synthetic thermoplastic materials such as organic derivatives of cellulose, linear polyamides (nylon,
  • acrylic fibers Orlon
  • vinyl acetate-chloride copolymers Vinyl acetate-chloride copolymers
  • the invention is also useful for crimping other fibers in filament or staple form, for example wool, vegetable fibers, and the like.
  • An object of this invention is to provide a crimper of the stutter box type which is particularly adapted for use with such small denier tow or yarn.
  • Another object is to provide a crimping apparatus of the above type having novel and improved heating means for maintaining the tow or yarn at the proper temperature for crimping.
  • Fig. 1 is a diagrammatic view, partly in section, of a crimping apparatus embodying the present invention
  • Fig. 2 is a perspective view of the block forming the crimping chamber
  • Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2;
  • Fig. 4 is a sectional detail showing a modified form of discharge gate for the crimping chamber
  • Fig. 5 is a detail view showing the mounting of the feed rollers of Fig. l, but on a larger scale;
  • Fig. 6 is a vertical section through the feed rollers taken on the line 6--6 of Fig. 7; I
  • Fig. 7 is a horizontal section taken on the line 7-7 of Fig. 6;
  • Figs. 8, 9 and 10 are detail views illustrating different forms of discharge gates.
  • the crimper is shown as comprising a pair of feed rolls 10 and 11 which are adapted to feed a continuous filament tow or yarn 12 into a crimping chamber 13 formed in a block 14.
  • the feed roll 10 is mounted on a shaft 15 carrying a driving gear 16 meshing with a driving pinion 17.
  • the shaft 15 and the pinion 17 are mounted on a bracket 18 projecting from a base 19.
  • the feed roll 11 is mounted on a shaft 20 which is journaled in bearings 21 in a housing 22 carried by arms 23 pivoted to a fixed pin 24 mounted in brackets 25 which project upwardly from the base 19.
  • a spring 26 engages an arm 23 to hold the feed roll 11 in pressure engagement with the feed roll 10.
  • Spring 26 is adjusted by means of a threaded pin 27 carried by a bracket 28 also supported by the base 19.
  • the shaft 20 carries a gear 29 meshing with the gear 16 for driving the two feed rolls 10 and 11 in unison.
  • the gears 16 and nited States Patent 0 2,734,223 Patented Feb. 14, 1956 ice 29 are provided with teeth which are of sufiicient depth to remain in driving engagement throughout the limited range of movement of the arms 23 encountered in normal operation.
  • the block 14 is supported below the feed rolls 10 and 11 by a clamp 30 attached to the bracket 18.
  • the block 14 has a pair of bores 33 (Figs. 2 and 3) extending parallel to the bore 13 and carrying heating units 34, such as Calrods, by which the crimping chamber may be heated.
  • manifolds 36 and 37 are mounted on opposite sides of the block 14 and communicate with passages 38 and 39 respectively passing through the walls of the block .14 into the bore 13.
  • Inlet and outlet ducts 40 and 41 con nect respectively with the manifolds 36 and 37.
  • Ba'ffies 42 and 43 are shown as provided opposite the ducts 40 and 41 fordistributin g thefluid uniformlyin the manifolds.
  • the block 14 is formed with a saddle comprising apair of channels formed by-side walls-45am arcuate walls 46.
  • the side walls '45 are tangent to the cylindricalsurface of the bore 13 at diametrically opposite sides and the arcuate walls 46 intersect the bore 13 along a curve 47 to form a curved knife edge which extends around the periphery of the bore- 13.
  • the walls 46 are curved to taper away from the periphery of the rolls toward the outer surface of the block 14 so as to leave a clearance and thus reduce thefriction on the rollsand to facilitate the wearing in of the surfaces by the rolls to provide a close fit at the knife edge 47.
  • Theside walls 45 project along the sides of the rolls 10 and 11 so as to confine the tow or yarn against lateral displacement as it is fed by the feed rolls '10 and 11 into the crimping chamber.
  • the smooth curve of the knife edge 47 which merges into the side walls 45 at the entrance end of the crimping chamber avoids the formation of any corners or projections which could interfere with or damage the tow or yarn as it is fed into the crimping chamber by feedrolls 10 and-11.
  • the block 14 is provided with a flange 50 at the exit end of the crimping chamber formed by 'the bore 13.
  • a tapered tube "51 is attached to the flange 50 by a sleeve 52.
  • the 'tube 51 may be made of glass or other smooth material and tapers toward its discharge end to an opening 53 whichconforrns in general to the size of the tow or yarn 12 which is being treated in the crimping chamber.
  • the tow or yarn '12 is shown as passing through a longitudinal slot or groove 55 in a bar'56 which isprovidecl with suitable heating means indicated as Calrods 57 and may have suitable heat insulation 58 therear'ound.
  • the tow or yarn 12 is preheated in passing through the slot 55 and then feeds around a roller 60 through-'a'tube 61 to the feed rolls 1i) and 11.
  • Thetube '61 is mounted in a clamp 62 attached to the bracket 18, has a bore 63 of a size conforming generally to the size of the tow or yarn 12 and is positioned to guide the tow or yarn Foster winder which includes a driving roll 68 driven at a constant speed on which a cone winding 69 rests.
  • the roll 68 is provided with traversing guide means 70 for guiding the tow or yarn into uniform layers and, due to its constant peripheral speed of rotation, winds the entire package under a substantially constant tension which is controllable by the tension device 66.
  • traversing guide means 70 for guiding the tow or yarn into uniform layers and, due to its constant peripheral speed of rotation, winds the entire package under a substantially constant tension which is controllable by the tension device 66.
  • any other standard type of winder may be used it is preferable to use a constant speed winder for the reasons to be described.
  • the tow or yarn 12 which may for example be composed of a bundle of fine filaments of synthetic thermoplastic material, is first passed through the preheating device to heat the material to a temperature somewhat below the temperature re quired for crimping, but sufficiently high to provide for substantially instantaneous heating to the required temperature when the tow or yarn reaches the crimping chamber.
  • the preheated tow or yarn is then fed through the guide tube 61 to the feed rolls and 11 and is gripped by the feed rolls and forced into the mass of filaments packed in said chamber, thereby causing the tow or yarn to fold over and form fine crimps, the fineness and frequency of which depends upon the nature of the material and the back pressure which is maintained in the crimping chamber. If the material is preheated to or near the softening temperature the crimps will be finer and of greater frequency than if the material is less highly preheated and is stiffer as it is forced into the crimping chamber.
  • heat is supplied by a heating means shown as Calrods 34 which heat the walls of the block 14 and thus transfer heat to the bore 13 and the material therein as it passes along the heated walls.
  • This temperature may be controlled by suitable thermostatic means not shown.
  • a fluid such as hot air
  • This fluid may pick up heat from the walls and transfer the heat to the material within the crimping chamber or it may be preheated or if desired may carry a chemical softening or setting agent. Under certain conditions it may be sufficient to heat the material within the crimping chamber by the hot fluid supplied through the duct 40 without heating the walls themselves, in which event the Calrods or the like 34 may be omitted.
  • the material is caused to remain in the crimping chamher a suflicient length of time for the internal stresses produced by crimping to be relieved so that the tendency for the crimps to be opened up after the material has been removed from the chamber is eliminated.
  • the ma terial immediately cools and becomes permanently set upon removal from the crimping chamber or the chamber may be so designed that the material cools while packed in the tube 51 to a temperature below that at which there is any tendency for plastic flow. Since the stresses have been relieved by maintaining the material in heated condition in the crimping chamber the crimp is permanently set by this heating and cooling operation.
  • the pressure within the crimping chamber is determined by the rate of removal of the crimped tow or yarn from the tube 51. This in turn is determined by the rate at which the winder 67 is operated.
  • the speed of the winder 67 is so adjusted and maintained with respect to the speed of the rolls 10 and 11 that selected conditions are maintained within the crimping chamber. Since the tow or yarn is in a straight condition as it is fed by the rolls 10 and 11 into the crimping chamber and is in crimped condition as it leaves the chamber, the speed of the winder 67 is correspondingly less than the speed of the rolls 10 and 11.
  • the tension applied to the tow or yarn by the winder 67 by varying the extension of the spring-like crimps determines the rate at which the tow or yarn is withdrawn from the crimping chamber, which together with the physical characteristics of the material determines the crimp frequency and amplitude.
  • the provision of a controlled rate of discharge as well as a controlled rate of feed establishes a uniform operation and permits the nature of the crimp, the temperature and time within the crimping chamber, and the rate of feed to be regulated with extreme accuracy.
  • the tube 51 at the discharge end of the crimping chamber is shown as replaced by a tube 75 which is at tached to the flange 50 and is provided with a bore 76 through which the crimped material is discharged.
  • the lower end of the tube 75 is split and a part of the wall at such lower end is formed by a gate member 77 which is pivotally attached by a pivot 78 to brackets 79 so as to swing inwardly for maintaining pressure against the material as it is fed through the bore, but to swing outwardly in response to the pressure of said material so as to allow the material to be released when the pressure reaches a predetermined value.
  • the pressure thus exerted on the material by the gate member 77 is controlled by a block 80 which is pivoted at 81 to the bracket 79 and is provided with a spring-pressed ball 82 hearing against the surface of the gate member 77.
  • the force exerted by the ball 82 is adjusted by means of a weight 83 which is attached to a rod 84 carried by the block 80. In this way a fine adjustment may be made of the force exerted by the gate member 77 against the material in the bore 76.
  • the operation of the crimping chamber with this discharge gate is similar to that above described except that the material is discharged due to the pressure produced by the rolls 10 and 11 instead of being pulled from the chamber by a winding device.
  • Fig. 8 shows a modified form of gate including a hinge plate 88 pivoted at 89 to a wall 90 of a tubular member 91 which is attached to the flange 50.
  • a weight 92 which may be adjustable, determines the force exerted by the hinge plate 88 against the material within the crimping chamber.
  • a discharge gate is shown in the form of a flexible tube 95 which may be made of rubber or the like and is disposed on the flange 50 of Fig. l.
  • the tube 95 is restricted at its discharge end and the opening may be varied by a lever 96 bearing against the wall of the tube 95 and carrying a weight 97.
  • a collar 100 is adapted to be attached to the flange 50 by a set screw 101 and carries a set of spring fingers 102 through which the tow or yarn feeds.
  • the pressure maintained within the crimping chamber in any of these forms is determined by the force exerted by the movable gate at the discharge end.
  • the embodiments of Figs. 4, 8, 9 and 10 may be used in cases where simplicity is required and where the nature of the material is such that it is not necessary to provide feeding means as in Fig. 1 for withdrawing the material from the crimping chamber.
  • An apparatus for crimping tow or yarn comprising a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber, said member having at one end a saddle conforming to the bight of said rolls and having at the other end a tube having a bore tapering to a small opening at its discharge end.
  • An apparatus for crimping tow or yarn comprise ing a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber disposed to rective the tow or yarn from said rolls, said chamber being flared for a portion of its length from said rolls and being tapered for the remainder of its length to a restricted opening at the discharge end.
  • An apparatus for crimping tow or yarn comprising a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber disposed to receive the tow or yarn from said rolls and a guide member having a passage for said tow or yarn disposed in advance of said rolls and having a surface conforming to the bight of said rolls for guiding the tow or yarn as it is gripped by said rolls.
  • An apparatus for crimping tow or yarn comprising a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber disposed to receive the tow or yarn from said rolls, and a gate disposed at the discharge end of said chamber, said gate comprising a flexible member having a constricted opening for the passage of the tow or yarn therethrough.
  • An apparatus for crimping tow or yarn comprising a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber disposed to receive the tow or yarn from said rolls, and a gate disposed at the discharge end of said chamber, said gate comprising a tapered flexible tube having a restricted opening for the passage of the tow or yarn therethrough and being expandible due to the force exerted thereon by the tow or yarn.
  • An apparatus for crimping tow or yarn comprising a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber disposed to receive the tow or yarn from said rolls, and a gate disposed at the discharge end of said chamber, said gate comprising a ring of flexible fingers having a restricted opening for the passage of the tow or yarn therethrough and being expandible due to the force exerted thereon by the tow or yarn.
  • the method of crimping a tow or yarn which comprises feeding said tow or yarn between feed rolls into a stufier crimper chamber containing a mass of such tow or yarn under conditions to cause the tow or yarn to told and crimp as it is forced into said mass, heating the mass in said chamber to a temperature and for a time to re lieve strains produced by crimping, and pulling said crimped tow or yarn from said chamber under tension at a controlled rate.
  • the method of crimping a tow or yarn composed of continuous filament synthetic thermoplastic material which comprises preheating said material to a temperature near its softening point, feeding said preheated tow or yarn between feed rolls into a stufier crimper chamber containing a mass of such filaments under conditions to cause the filaments to fold and crimp as they are forced into said mass of filaments, heating the mass of filaments in said chamber to a temperature and for a time to relieve strains produced by crimping, and pulling said crimped tow or yarn from said chamber under tension at a controlled rate.
  • the method of crimping a tow or yarn composed of continuous filament synthetic thermoplastic material which comprises feeding said tow or yarn between feed rolls into a stuffer cn'mper chamber containing a mass of such tow or yarn under conditions to cause the tow or yarn to fold and crimp as it is forced into said mass, heating the mass of filaments in said chamber to a temperature and for a time to relieve strains produced by crimping and pulling the crimped tow or yarn from said chamber under tension at a controlled rate.
  • An apparatus for crimping tow or yarn comprising a pair of feed rolls adapted to feed said tow or yarn therebetween, a member having a bore forming a crimping chamber disposed to receive the tow or yarn from said rolls, said chamber having a restricted passage at the discharge end, and means pulling said tow or yarn from said discharge end through said passage under tension.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US2734228D 1952-10-28 Crimping apparatus Expired - Lifetime US2734228A (en)

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US311152XA 1952-10-28 1952-10-28

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793418A (en) * 1953-08-06 1957-05-28 Bachmann Uxbridge Worsted Corp Crimping of filaments
US2846729A (en) * 1955-11-04 1958-08-12 American Cyanamid Co Tow crimper
US2854701A (en) * 1956-03-07 1958-10-07 Bancroft & Sons Co J Crimping method and apparatus
US2854729A (en) * 1955-04-21 1958-10-07 Bancroft & Sons Co J Crimping apparatus
US2914835A (en) * 1954-03-04 1959-12-01 Owens Corning Fiberglass Corp Method of crimping fibrous glass strand
US2924001A (en) * 1959-06-26 1960-02-09 Crimp setting device
US2933771A (en) * 1955-10-10 1960-04-26 Allied Chem Crimping apparatus
US3009233A (en) * 1958-02-03 1961-11-21 Us Rubber Co Method of producing articles
US3017684A (en) * 1956-01-24 1962-01-23 Deering Milliken Res Corp Textile materials and method of making the same
US3031734A (en) * 1960-05-04 1962-05-01 Allied Chem Crimping process
US3111740A (en) * 1959-02-02 1963-11-26 Techniservice Corp Method and apparatus for strand crimping
US3120692A (en) * 1960-06-17 1964-02-11 Eastman Kodak Co Process for the manufacture of uniformly crimped filter tow
US3164882A (en) * 1950-05-31 1965-01-12 Spunize Company Of America Inc Apparatus and method for crimping of natural and synthetic textile material
US3172185A (en) * 1961-11-07 1965-03-09 Bancroft & Sons Co J Yarn packaging and treatment
US3175774A (en) * 1962-01-29 1965-03-30 Ici Ltd Winding of yarns
US3178794A (en) * 1962-01-04 1965-04-20 Turbo Machine Co Method of and apparatus for coiling continuous filament yarn and yarn produced thereby
US3204396A (en) * 1961-08-21 1965-09-07 Us Rubber Co Method for texturing thermoplastic yarn and apparatus
US3234625A (en) * 1959-12-08 1966-02-15 Bancroft & Sons Co J Stuffer crimping apparatus
US3253314A (en) * 1963-10-17 1966-05-31 Bancroft & Sons Co J Crimping apparatus
US3256582A (en) * 1964-03-04 1966-06-21 Burlington Industries Inc Apparatus and method for bulking yarn
US3302264A (en) * 1962-11-28 1967-02-07 Klinger Mfg Co Ltd Method of crimping yarn
US3305897A (en) * 1964-10-28 1967-02-28 Du Pont Crimping process
US3337930A (en) * 1966-01-21 1967-08-29 Foster Grant Co Inc Method and apparatus for processing yarn
US3340585A (en) * 1964-08-20 1967-09-12 Courtaulds Ltd Yarn crimping method and apparatus
US3367101A (en) * 1959-05-22 1968-02-06 Spunize Co Of America Inc Crimped roving or sliver
US3394439A (en) * 1965-03-02 1968-07-30 Klinger Mfg Co Ltd Method and apparatus for bunching yarn
US3594879A (en) * 1964-10-26 1971-07-27 Bancroft & Sons Co J Control mechanism for stuffer crimper
US3641637A (en) * 1969-08-04 1972-02-15 Spinn Und Zwirnerei Maschinenb Stuffing box crimping device
US3650001A (en) * 1970-12-24 1972-03-21 Phillips Petroleum Co Yarn texturing apparatus
US3983608A (en) * 1973-03-22 1976-10-05 Techniservice Division Textured Yarn Co., Inc. Textile treatment apparatus
US4024611A (en) * 1975-10-02 1977-05-24 Allied Chemical Corporation Method and apparatus for texturizing continuous filaments
US4024610A (en) * 1975-10-02 1977-05-24 Allied Chemical Corporation Method and apparatus for texturizing continuous filaments
US6385827B1 (en) * 2001-03-15 2002-05-14 Shaw Industries, Inc. Apparatus and method for texturing yarn
US20030115729A1 (en) * 2001-12-21 2003-06-26 Philippe Massotte Apparatus and method for producing frieze yarns
US20060177384A1 (en) * 2001-12-04 2006-08-10 Brown Dale G Sialagogue coatings for interproximal devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237260B (de) * 1957-06-05 1967-03-23 Dow Chemical Co Verfahren zur kontinuierlichen Herstellung von dauerhaft gekraeuselten Polyacrylnitrilfaeden bzw. -fasern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311174A (en) * 1940-12-06 1943-02-16 Du Pont Textile crinkler
US2514557A (en) * 1948-08-07 1950-07-11 Alexander Smith & Sons Carpet Crimping apparatus
US2575837A (en) * 1948-07-14 1951-11-20 Alexander Smith Inc Process for treating proteinaceous fibers
US2575838A (en) * 1948-11-30 1951-11-20 Alexander Smith Inc Method of crimping proteinaceous fibers
US2575781A (en) * 1949-10-14 1951-11-20 Alexander Smith Inc Method of crimping textile fibers
US2575833A (en) * 1949-10-14 1951-11-20 Alexander Smith Inc Method for crimping textile fibers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311174A (en) * 1940-12-06 1943-02-16 Du Pont Textile crinkler
US2575837A (en) * 1948-07-14 1951-11-20 Alexander Smith Inc Process for treating proteinaceous fibers
US2514557A (en) * 1948-08-07 1950-07-11 Alexander Smith & Sons Carpet Crimping apparatus
US2575838A (en) * 1948-11-30 1951-11-20 Alexander Smith Inc Method of crimping proteinaceous fibers
US2575781A (en) * 1949-10-14 1951-11-20 Alexander Smith Inc Method of crimping textile fibers
US2575833A (en) * 1949-10-14 1951-11-20 Alexander Smith Inc Method for crimping textile fibers

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164882A (en) * 1950-05-31 1965-01-12 Spunize Company Of America Inc Apparatus and method for crimping of natural and synthetic textile material
US2793418A (en) * 1953-08-06 1957-05-28 Bachmann Uxbridge Worsted Corp Crimping of filaments
US2914835A (en) * 1954-03-04 1959-12-01 Owens Corning Fiberglass Corp Method of crimping fibrous glass strand
US2854729A (en) * 1955-04-21 1958-10-07 Bancroft & Sons Co J Crimping apparatus
US2933771A (en) * 1955-10-10 1960-04-26 Allied Chem Crimping apparatus
US2846729A (en) * 1955-11-04 1958-08-12 American Cyanamid Co Tow crimper
US3017684A (en) * 1956-01-24 1962-01-23 Deering Milliken Res Corp Textile materials and method of making the same
US2854701A (en) * 1956-03-07 1958-10-07 Bancroft & Sons Co J Crimping method and apparatus
US3009233A (en) * 1958-02-03 1961-11-21 Us Rubber Co Method of producing articles
US3111740A (en) * 1959-02-02 1963-11-26 Techniservice Corp Method and apparatus for strand crimping
US3367101A (en) * 1959-05-22 1968-02-06 Spunize Co Of America Inc Crimped roving or sliver
US2924001A (en) * 1959-06-26 1960-02-09 Crimp setting device
US3234625A (en) * 1959-12-08 1966-02-15 Bancroft & Sons Co J Stuffer crimping apparatus
US3031734A (en) * 1960-05-04 1962-05-01 Allied Chem Crimping process
US3120692A (en) * 1960-06-17 1964-02-11 Eastman Kodak Co Process for the manufacture of uniformly crimped filter tow
US3204396A (en) * 1961-08-21 1965-09-07 Us Rubber Co Method for texturing thermoplastic yarn and apparatus
US3172185A (en) * 1961-11-07 1965-03-09 Bancroft & Sons Co J Yarn packaging and treatment
US3178794A (en) * 1962-01-04 1965-04-20 Turbo Machine Co Method of and apparatus for coiling continuous filament yarn and yarn produced thereby
US3175774A (en) * 1962-01-29 1965-03-30 Ici Ltd Winding of yarns
US3302264A (en) * 1962-11-28 1967-02-07 Klinger Mfg Co Ltd Method of crimping yarn
US3253314A (en) * 1963-10-17 1966-05-31 Bancroft & Sons Co J Crimping apparatus
US3256582A (en) * 1964-03-04 1966-06-21 Burlington Industries Inc Apparatus and method for bulking yarn
US3340585A (en) * 1964-08-20 1967-09-12 Courtaulds Ltd Yarn crimping method and apparatus
US3594879A (en) * 1964-10-26 1971-07-27 Bancroft & Sons Co J Control mechanism for stuffer crimper
US3305897A (en) * 1964-10-28 1967-02-28 Du Pont Crimping process
US3394439A (en) * 1965-03-02 1968-07-30 Klinger Mfg Co Ltd Method and apparatus for bunching yarn
US3337930A (en) * 1966-01-21 1967-08-29 Foster Grant Co Inc Method and apparatus for processing yarn
US3641637A (en) * 1969-08-04 1972-02-15 Spinn Und Zwirnerei Maschinenb Stuffing box crimping device
US3650001A (en) * 1970-12-24 1972-03-21 Phillips Petroleum Co Yarn texturing apparatus
US3983608A (en) * 1973-03-22 1976-10-05 Techniservice Division Textured Yarn Co., Inc. Textile treatment apparatus
US4024611A (en) * 1975-10-02 1977-05-24 Allied Chemical Corporation Method and apparatus for texturizing continuous filaments
US4024610A (en) * 1975-10-02 1977-05-24 Allied Chemical Corporation Method and apparatus for texturizing continuous filaments
US4133087A (en) * 1975-10-02 1979-01-09 Allied Chemical Corporation Method and apparatus for texturizing continuous filaments
US4135280A (en) * 1975-10-02 1979-01-23 Allied Chemical Corporation Method and apparatus for texturizing continuous filaments
US6385827B1 (en) * 2001-03-15 2002-05-14 Shaw Industries, Inc. Apparatus and method for texturing yarn
US20060177384A1 (en) * 2001-12-04 2006-08-10 Brown Dale G Sialagogue coatings for interproximal devices
US20030115729A1 (en) * 2001-12-21 2003-06-26 Philippe Massotte Apparatus and method for producing frieze yarns
US6718603B2 (en) * 2001-12-21 2004-04-13 Superba (Sa) Apparatus and method for producing frieze yarns

Also Published As

Publication number Publication date
CH311152A (de) 1955-11-30
NL83300C (cs)

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